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Related Concept Videos

Randomized Experiments01:13

Randomized Experiments

The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast, controlled...
Strategies for Assessing and Addressing Confounding01:25

Strategies for Assessing and Addressing Confounding

Confounding is a critical issue in epidemiological studies, often leading to misleading conclusions about associations between exposures and outcomes. It occurs when the relationship between the exposure and the outcome is mixed with the effects of other factors that influence the outcome. Given that, addressing confounding is of high importance for drawing accurate inferences in research.
Confounding can be addressed at both the design phase of a study and through analytical methods after data...
Bioavailability Study Design: Single Versus Multiple Dose Studies01:11

Bioavailability Study Design: Single Versus Multiple Dose Studies

Bioavailability studies are essential for understanding how a drug is absorbed, distributed, metabolized, and excreted in the body. These studies assess the extent and rate at which the active pharmaceutical agent becomes available at the site of action. The design of bioavailability studies can involve single-dose or multiple-dose regimens, each with distinct advantages and limitations.Single-dose studies are the preferred approach due to their simplicity and reduced drug exposure for...
Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs01:15

Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs

Bioequivalence experimental study designs play a pivotal role in testing the effectiveness of various treatments. Key among these are the repeated measures, cross-over, carry-over, and Latin square designs. In the repeated measures design, each subject receives all treatments, allowing for temporal comparisons. This type of design is useful in reducing variability but requires careful planning to avoid bias.The cross-over design, an economical method, involves sequential administration of...
Frequency-dependent Selection01:21

Frequency-dependent Selection

When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.Positive Frequency-Dependent SelectionIn positive...

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Related Experiment Video

Updated: Jul 8, 2026

Simultaneous Study of the Recruitment of Monocyte Subpopulations Under Flow In Vitro
09:16

Simultaneous Study of the Recruitment of Monocyte Subpopulations Under Flow In Vitro

Published on: November 26, 2018

A process to manage recruitment to multiple competing studies.

Janet S Carpenter1, Kim Ziner

  • 1Indiana University, Indiana, USA. carpentj@iupui.edu

Western Journal of Nursing Research
|January 12, 2008
PubMed
Summary

Managing patient recruitment in breast cancer research is challenging with multiple studies. A coordinated recruitment core was developed to streamline enrollment and overcome competition for participants, improving research efficiency.

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Area of Science:

  • Oncology
  • Clinical Research Management
  • Health Services Research

Background:

  • Previous strategies focused on general barriers to research participation.
  • Limited guidance exists for managing recruitment in settings with multiple, competing clinical studies.
  • Breast cancer clinics often face challenges with patient recruitment due to study overlap.

Purpose of the Study:

  • To describe the development and implementation of a coordinated recruitment core.
  • To address the specific need for managing recruitment in a multi-study breast cancer clinic environment.
  • To provide a framework for optimizing patient enrollment in competitive research settings.

Main Methods:

  • Defined the problem and need for a coordinated approach.
  • Designed and implemented a central recruitment core.
  • Employed strategies to facilitate implementation and overcome barriers.
  • Conducted an initial evaluation of the core's effectiveness.

Main Results:

  • Successfully developed and implemented a coordinated recruitment core.
  • Managed recruitment across multiple, competing breast cancer studies.
  • Identified expected and unexpected benefits of the centralized approach.
  • Gained insights into the practicalities of managing multi-study recruitment.

Conclusions:

  • A coordinated recruitment core is an effective strategy for managing patient enrollment in multi-study environments.
  • Centralized management can mitigate competition and improve recruitment efficiency in clinical research.
  • The developed framework offers valuable lessons for other institutions facing similar recruitment challenges.